Content = function() {
    /**
     * Container of Application's content
     */
    var container = null;
    var contentContainer = null;

    return {
        
        getContainer : function() {
        	return container;
        },
        
        /**
         * Create content panel is empty and it will be populated later.
         */
        init : function() {
            container = new Ext.Container({
            	layout : 'card',
				region : 'center',
				header : false,
				border : false,
				activeItem : 0
            });
            return container;
        },
        
        renderContentItem : function(panel){
        	container.removeAll(true);
        	container.add(panel);
        	container.getLayout().setActiveItem(panel);
        	container.doLayout(false, true);
        }
    }
}();